Dual-wavelength image acquisition system and method

An image acquisition system and dual-wavelength technology, which is applied in image enhancement, image analysis, image data processing, etc., can solve the problems of large equipment volume and power consumption, and achieve the effect of low power consumption and small size

Pending Publication Date: 2017-07-07
SHENZHEN ORBBEC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the acquisition of infrared images and depth images, it is a common technical means to independently collect infrared light images and depth images through infrared cameras and depth cameras respectively, that is, separate acquisitions on acquisition devices and separate acquisitions in time series are currently common. technical means, which requires a large equipment size and power consumption to complete

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  • Dual-wavelength image acquisition system and method

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Embodiment 1

[0034] Such as figure 1 As shown, it is a schematic diagram of a dual-wavelength image acquisition system built into a mobile device according to an embodiment of the present invention, and it is a specific application of the dual-wavelength image acquisition system of the present invention as a built-in unit of a mobile device. The dual-wavelength image acquisition system is embedded in the mobile device 4 as an embedded unit device, including an illumination unit 1, an image acquisition unit 2, and an optical projector 3, and the applied processor is an AP processor in the mobile device. In this embodiment, the mobile device 4 is a mobile phone; the position where the depth image acquisition system is embedded is the top of the mobile device 4, and the mobile device 4 embedded in the image acquisition system can be used to acquire the depth image of the target, and further can be used For 3D scanning, 3D modeling, 3D recognition and other applications.

[0035] In some alte...

Embodiment 2

[0045] Such as figure 2What is shown is a schematic diagram of a dual-wavelength image acquisition system according to an embodiment of the present invention. The dual-wavelength image acquisition system includes an illumination unit 1 , an image acquisition unit 2 , an optical projector 3 , and a processor unit 5 . In this embodiment, the lighting unit 1 , the image acquisition unit 2 , and the optical projector 3 are on a straight line.

[0046] like image 3 Shown is a schematic structural diagram of the image acquisition unit of the embodiment of the present invention. The image acquisition unit 2 includes a filter unit 21 and an image sensor unit 22; the filter unit 21 includes a first filter unit and a second filter unit and allows passing the first wavelength and the second wavelength respectively. wavelength of light; the image sensor unit 22 is used to acquire an optical image and transmit the optical image to the processor unit.

[0047] In other alternative emb...

Embodiment 3

[0056] Figure 4 is a schematic diagram of the first filter unit of the image acquisition unit of the embodiment of the present invention. Ordinary RGB cameras use Bayer filters, which have the same number of image sensor pixels and one-to-one corresponding filter units. Bayer filters are used to filter light through red light, green light, and blue light. unit, and considering that the human eye is more sensitive to green light, the ratio of the three is R(25%):G(50%):B(25%). In this embodiment, the dual-wavelength image acquisition system includes an illumination unit 1 , an image acquisition unit 2 , an optical projector 3 , and a processor unit 5 . Wherein the filter unit 21 of the image acquisition unit 2 is made up of two parts, wherein IR1 and IR2 represent two kinds of infrared light with different wavelengths, the corresponding pixel of IR1 will be able to collect the infrared image of IR1 wavelength, and the corresponding pixel of IR2 will collect Infrared images t...

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Abstract

The invention provides a dual-wavelength image acquisition system and method. The system comprises an optical projection unit including an optical projector and a lighting unit, an image acquisition unit which comprises a light filter and an image sensor and is used for obtaining an optical image and transmitting the obtained optical image to a processor unit, and the processor unit which is used for receiving the optical image and calculating and obtaining a light image and a depth image. According to the system and the method, the depth images and the light images without parallax can be obtained simultaneously, and the simultaneous acquisition of the light image and the depth images with equipment with a small size and low power consumption is realized.

Description

technical field [0001] The invention relates to the technical field of optical projection and measurement, in particular to a dual-wavelength image acquisition system and method. Background technique [0002] In the field of artificial intelligence, expression recognition and lip language recognition have always been hot topics of research. At present, a large number of researches are based on the RGB image of the target object, and the recognition hit rate has always been the bottleneck restricting the development of technology. With the continuous development of 3D measurement technology and infrared laser technology, researchers have gradually turned their attention to the depth of the target object and infrared images, and combined infrared and depth images to recognize facial expressions, lip language, etc., because infrared lasers are not affected by ambient light Influence, and the depth image contains richer target object information, so this combination method grea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/20G06K9/00G06T7/521
CPCG06T2207/10048G06V40/10G06V10/94G06V10/145
Inventor 黄源浩肖振中刘龙许星
Owner SHENZHEN ORBBEC CO LTD
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